When a harmless organism has an appearance similar to another harmful organism?

Now it's your turn to investigate human impact around the world. grab your virtual lab coat and put on your environmental science hat. you will be taking a trip around the globe to explore three locations. at each location, you will investigate the cause and effect relationships of deforestation, desertification, and urbanization. you will also gather evidence of how these factors have impacted the environment over time

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

The negative impacts of nonnative species generally outweigh the positive impacts